135717296389 has 2 divisors, whose sum is σ = 135717296390. Its totient is φ = 135717296388.

The previous prime is 135717296317. The next prime is 135717296423. The reversal of 135717296389 is 983692717531.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135354089025 + 363207364 = 367905^2 + 19058^2 .

It is a cyclic number.

It is not a de Polignac number, because 135717296389 - 2¹⁵ = 135717263621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135717396389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67858648194 + 67858648195.

It is an arithmetic number, because the mean of its divisors is an integer number (67858648195).

Almost surely, 2^135717296389 is an apocalyptic number.

It is an amenable number.

135717296389 is a deficient number, since it is larger than the sum of its proper divisors (1).

135717296389 is an equidigital number, since it uses as much as digits as its factorization.

135717296389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17146080, while the sum is 61.

The spelling of 135717296389 in words is "one hundred thirty-five billion, seven hundred seventeen million, two hundred ninety-six thousand, three hundred eighty-nine".